JABSCO RAW WATER PUMP (SABRE 185C, M215C)

JABSCO RAW WATER PUMP (SABRE 185C, M215C)

Jabsco 29630-1301A Raw Water Pump – 32mm Flange Mounted Engine Cooling Pump

The Jabsco 29630-1301A raw water pump, sold under Sabre part number 34449 is a heavy-duty bronze flexible impeller engine cooling pump designed for reliable seawater circulation in marine diesel cooling systems. This Jabsco cooling pump features flange mounting, 32mm (1¼”) hose connections and a self-priming flexible impeller design.

The 29630-1301A is manufactured as an aftermarket replacement for Caterpillar 4255411 / 425-5411 and is listed for Caterpillar 3054, 3054B and 3056 engine applications. It is also used in marine installations based around Perkins/Caterpillar-derived diesel engines, including certain Perkins Sabre marine diesel applications. Always verify the pump part number, mounting arrangement, hose size and engine serial number before ordering.

Jabsco 34449 Raw Water Pump Features

• Genuine Jabsco engine cooling pump
• Jabsco part number: 29630-1301A
• Sabre part number: 34449 and W10000 for Perkins Sabre 185C and 215C (late engines, please confirm with your engine number before ordering)
• Caterpillar part number: 4255411 / 425-5411 for specified Caterpillar 3054, 3054B and 3056 applications
• Size 080 flexible impeller pump
• Durable bronze pump construction
• Self-priming design
• Flange-mounted installation
• 32mm / 1¼” hose connections
• Gear-driven pump
• Full-cam configuration
• Fitted with Jabsco 920-0001B flexible impeller
• Serviceable pump design with replacement seals, bearings, shaft, cam, wear plate and other components available

The flexible impeller is the working component that provides the raw-water flow required by the engine’s seawater cooling circuit. Jabsco’s marine pump documentation recommends regular inspection of the impeller and pump head components to identify wear before problems develop in service.

Why Replace a Marine Raw Water Pump?

A raw water pump is a critical part of a marine diesel engine’s cooling system. If pump performance deteriorates, seawater flow through the heat exchanger and associated cooling components can be reduced. This can result in increased engine temperature, particularly when the engine is operating under load.

Jabsco recommends regular pump inspection and maintenance rather than simply waiting for a complete failure. Their guidance includes checking for:

• Impeller damage or wear
• Water leakage around the pump
• Unusual pump noise
• Excessive vibration
• Changes in operating temperature
• Worn seals and O-rings
• Shaft wear
• Bearing wear
• Damage to the pump head components

Jabsco also advises that the impeller should be inspected regularly and replaced when worn or damaged. Running a flexible impeller pump without adequate fluid flow can damage both the impeller and seals

Additional information